Abstract: A crankshaft assembly for a scroll compressor. The scroll compressor includes intermeshed and nested stationary and orbiting scroll elements which define at least one spiraling compression pocket therebetween and an orbital drive mechanism for driving the central axis of the orbiting scroll element about the central axis of the stationary scroll element while maintaining the orbiting scroll element substantially non-rotational with respect to the stationary scroll element. The crankshaft assembly of the orbital drive mechanism includes a crankshaft member having an elongated shaft portion for rotation about a central axis of rotation and an orbiting rotational bearing affixed to a first distal end of the crankshaft member. The center of rotation of the orbiting rotational bearing is radially offset with respect to the central axis of rotation of the crankshaft member and is adapted to accept and rotationally engage a hub portion projecting from the orbiting scroll element.

Abstract: A door support and drive mechanism for a door can be mounted either over or in a door opening in a transit vehicle or other structure. The mechanism includes a tube which has a longitudinal slot. The mechanism also has mounts attached to the tube for mounting the mechanism to the structure over the door opening, so that the tube is substantially horizontal and the slot is along a lower portion of the tube. The mechanism includes at least one door hanger which has an upper portion movably disposed within the tube and a depending portion passing through the slot, the depending portion being for attachment to the door. The mechanism has a drive nut attached to the door hanger. A drive screw is positioned in the tube, engaging a threaded inner portion of the drive nut. The drive screw is connectable to a rotary power device to be rotated thereby. Rotation of the drive screw causes longitudinal movement of the drive nut and the hanger to which the drive nut is attached, so that the door is moved longitudinally.

Abstract: A rack for dishes in a dishwasher comprises a grid for supporting the dishes and an element mounted to the grid for pivoting towards and away from the grid. The rack also includes elastic cords and a latch mechanism for arresting the element. The elastic cords are mounted in the element to be engaged, yielding against the dishes supported in the rack by pivotal movement of the element towards the grid. The latch mechanism arrests the element in different pivoted positions with the elastic cords stretched against the dishes.

Abstract: A quick release mechanism for a railcar hand brake comprises a release shaft having a first end and a second end. The first end includes a cavity of a predetermined size and shape. A release lever has a hub journaled on the first end of the release shaft. A stop of a predetermined size and shape is disposed on the circumference of the hub of the release lever and engageable with the cavity of the release shaft to rotate such release shaft to cause free release of the brakes. A projection of a predetermined size and shape is disposed on the second end of the release shaft. An attachment of a predetermined size and shape is mounted to an inside wall of a housing of such hand brake. A tension member has a first end and a second end. The first end is secured to the projection, and the second end is secured to the attachment whereby the tension member will return the release shaft to the brake application position.

Abstract: A shock-resistant coupler for a vehicle includes a substantially hollow draft gear tube and a coupler head. The draft gear tube has an inside surface, and the coupler head has a flexible, substantially hollow shank portion. The shank portion has a distal end that extends into one end, or mouth, of the draft gear tube. A collar on the distal end features a predetermined number of longitudinally extending relief grooves. Formed in the shank portion adjacent the distal end thereof are at least two slots that extend longitudinally from the collar. These slots enable the distal end of the shank portion to be compressed inwardly so that the shank portion may be inserted into the draft gear tube. A plurality of shear bolts, directed radially through openings in the draft gear tube and corresponding threaded holes in the collar, enable the shank portion to be secured against the inside surface of the draft gear tube.

Abstract: A process for treating sulphate-containing waste water comprises introducing a feedstock comprising sulphate-containing waste water, into a pond. The sulphate-containing waste water is subjected to biological sulphate reduction in the pond, thereby to convert dissolved sulphate anions to dissolved sulphide anions. Treated waste water, containing the dissolved sulphide anions, is withdrawn from the pond.

Abstract: A lubrication apparatus for an anti-rotation assembly of an oiless rotary scroll compressor is disclosed. The scroll compressor includes a stationary scroll element and an orbiting scroll element which orbits about the stationary scroll element in a non-rotational fashion. At least one anti-rotation assembly is provided for preventing relative rotation between the orbiting and stationary scroll elements. The anti-rotation assembly, which includes a first rotational bearing component mounted on the interior of the housing, a second rotational bearing component mounted on the orbiting scroll element and an offset crank member interconnecting the first and second rotational bearing components, is lubricated via a lubrication channel. The lubrication channel extends from a lubrication port disposed on the exterior of the housing, through the first rotational bearing component, thereafter through a channel provided in the offset crank member, thus allowing the lubricating agent (e.g.

Abstract: An improved car mounted brake assembly is provided wherein the brake assembly includes a brake cylinder, a slack adjuster and a pair of brake beams mounted at each end of the car mounted brake assembly and actuated by the brake cylinder via a series of levers and linkages and wherein the improvement comprises a suspension system for suspending each of the brake beams within a corresponding railway vehicle truck arrangement. Each of the brake beams have a brake head attachable to each end thereof and each of the brake heads carries a brake shoe thereon which is positioned for engagement with a respective railway vehicle wheel during a brake application. The railway vehicle truck arrangement within which the brake beams are suspended includes a pair of truck side frames and a truck bolster member.

Abstract: A temperature indicator for indicating when a specified temperature has been exceeded in a fluid flow through a conduit. Such conduit having an aperture and the temperature indicator being mountable in such aperture and engagable therewith such that the temperature indicator projects through such aperture and into such fluid flow in such conduit. The temperature indicator includes a housing which substantially encloses an internal chamber and has a bore extending from the internal chamber to an external surface of the housing. An indicator member is disposed, at least in part, within the internal chamber and extends into the bore. A biasing element is disposed within the internal chamber and exerts a biasing force between the housing and the indicator member and urges the indicator member toward the bore. A bonding agent forms a bond between the indicator member and the housing to thereby restrain the indicator member from movement toward the bore under action of the biasing element.

Abstract: An empty/load brake control system mountable on a sprung and an unsprung member of a railway car and disposed between the car brake control valve and brake cylinder for adjusting the brake cylinder pressure during a brake application according to the car load condition. Such system includes an empty/load sensor valve device and a sensor arm coupled to a sensor cable whose movement is controlled by a sprung member and a terminal member disposed on an end of sensor cable, in contact with sprung member so that any downward movement of sprung member forces such terminal member in a similar downward direction and similarly pulls on the sensor cable. A piston, under pressure, urges the sensor arm to rotate and retract sensor cable but must overcome resistance of a spring. The system includes a load proportional valve.

Abstract: An axial load resistant anti-rotation bearing for a rotary scroll compressor is disclosed. The rotary scroll compressor includes stationary and orbiting scroll elements and a drive mechanism for driving the orbiting scroll element in an orbit about the stationary scroll element. The stationary and orbiting scroll elements are intermeshed and nested to form at least one spiraling compression pocket therebetween. The at least one compression pocket generates forces which tend to force the stationary and orbiting scroll elements apart in a direction parallel to their central axes. The axial load resistant anti-rotation bearing disclosed resists such axial separating forces and employs two rotational bearing components, a first rotational bearing component mounted on the interior of the compressor housing and a second rotational bearing component mounted on the orbiting scroll element.

Abstract: A brake shoe mounting system for railway vehicles includes a composition type brake shoe having a recessed center portion and two bracket-style backing plates integrally molded into the composition type brake shoe. There is one bracket style backing plate per each half of the brake shoe. Each bracket style backing plate further includes at least two projections extending outwardly from the convex surface of the composition brake shoe. The two projections extending outwardly are closely adjacent a first end of the brake shoe and at least one projection extends outwardly from the convex surface of the brake shoe closely adjacent the recessed center portion of the composition type brake shoe. The mounting system further includes a brakehead having a concave surface with a central projection for engaging the recessed center portion of the convex surface of the brake shoe.

Abstract: A jointed hand brake release handle for a railway car hand brake mechanism, having a lever arm with an inner end attachable to a rotatable hand brake release post of a hand brake mechanism, and an extension arm pivotally attached to the outer end of the lever arm and adapted for pivotal movement such that a contact face on the inner end of the lever arm can be brought into contact with a contact face on the outer end of the lever arm, and such that continued pivotal movement of the extension arm will cause rotational movement of the lever arm and rotation of the hand brake release post.

Abstract: The present invention provides a ball cock for a railway vehicle which comprises a main body possessing a primary-side opening and a secondary-side opening which face one another and an air exhaust aperture which is formed between these openings. Such ball cock further includes a ball-shaped valve body which is rotatably provided inside such main body and in which there is formed a communication aperture which connects the primary side opening and the secondary-side opening and a side aperture which, consequent to its rotation, connects the air exhaust aperture and either the primary-side or secondary-side opening. There is formed in the main body's air exhaust aperture a pipe connection to which is be connected a restrictor. In another embodiment a extension pipe is connected to such pipe connection in such air exhaust aperture.

Abstract: Retrofit apparatus is provided for rapidly exhausting air pressure from one or more intercoolers connected in fluid communication between two low pressure heads of an air compressor and a high pressure head of the compressor. The retrofit apparatus comprises an unloader valve, a center header for commonly connecting the intercoolers to the high pressure head, and means for connecting the unloader valve to the center header to effect rapid unloading of the header and the intercoolers connected thereto of pressurized air when the valve receives a compressor unload signal.

Abstract: A temperature indicator for providing a visual indication that a pressurized fluid has exceeded a specified temperature. Such pressurized fluid being contained within a container bounded by a container wall. Such container wall being provided with an aperture for mounting of the temperature indicator therein such that the temperature indicator protrudes through such aperture and into such pressurized fluid contained within such container. The temperature indicator includes a housing member, a cavity provided in the housing member and a bore extending from an interior portion of the cavity to an exterior surface of the housing member. The exterior surface of the housing member is visible from a position external of such container when the temperature indicator is mounted in such aperture such that the temperature indicator protrudes through such aperture and into such pressurized fluid contained within such container.

Abstract: A limp-in control arrangement for an electro-pneumatic integrated control system for railway vehicles including a supply and exhaust magnet valve for electrically controlling the pneumatic brakes on the railway vehicle, an electromagnetic relay for sensing the operational condition of the electro-pneumatic integration control system, a switching device for enabling a limp-in control function when the electro-pneumatic integrated control system is experiencing a malfunction, an operating device for initiating a limp-in control function by releasing and reapplying the pneumatic brakes to allow the railway vehicle to be moved to a repair facility.

Abstract: Method and apparatus for heating gases cooled by an aftercooler that receives hot gases from a compressor. The method includes the steps of directing at least a portion of said hot gases to means for bypassing the aftercooler, and using the bypass means to direct hot gases to a location that receives cooled gases from the aftercooler. The hot gases are used at the location to heat the cooled gases when ambient temperature is at or below freezing, and are used downstream from the aftercooler when moisture freezes in the aftercooler.

Abstract: A screw drive mechanism connectable to at least one of a first machine portion and a second machine portion for moving the second machine portion relative to the first machine portion from a first position to a second position. The mechanism has a base for attachment to one of the first and the second machine portions and a motor attached to the base. It includes a drive screw having a rotary motion connection to the motor to be rotated thereby and a drive nut having an internally threaded bore engaged with the drive screw to receive a drive force from the drive screw. A drive nut connection is engaged with the drive nut for conveying the drive force to one of the first and the second machine portions. An anti-rotation member is attached to the drive nut connection, the anti-rotation member engaging the drive nut to prevent rotation thereof.

Abstract: An anti-rotation device for a scroll compressor. The scroll compressor includes intermeshed and nested stationary and orbiting scroll elements which define at least one spiraling compression pocket therebetween and an orbital drive mechanism for driving the central axis of the orbiting scroll element about the central axis of the stationary scroll element. The anti-rotation device maintains the orbiting scroll element substantially non-rotational with respect to the stationary scroll element during its orbit thereabout and includes at least one anti-rotation bearing which includes a first bearing element mounted stationary with respect to the stationary scroll element, a second bearing element mounted on the orbiting scroll element and an offset crank member.